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Finding the Fourth Proportional to 713,818.03, 1,069,299.47 and 429,351.50

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Solution

The fourth proportional to 713,818.03, 1,069,299.47 and 429,351.50 is: 643,168.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,818.03 : 1,069,299.47 = 429,351.50 : x
  2. Step 2: Convert to fraction form
    713,818.03/1,069,299.47 = 429,351.50/x
  3. Step 3: Cross multiply
    713,818.03x = 1,069,299.47 × 429,351.50
  4. Step 4: Simplify right side
    713,818.03x = 459,105,331,393.71
  5. Step 5: Solve for x
    x = 459,105,331,393.71/713,818.03
  6. Step 6: Final answer
    x = 643,168.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.